Evaluating Functions - Examples & Practice
Read this topicExplanations 3
- (Video) Linear Functions by Mahalo In this video, Allison explains function notation and how to evaluate a function for a given value. Summary\large{\text{Summary}}Summary Simpl…
By Ben Ferrara, Zora Gilbert, Alex Federspiel, Amy Feraco, Sarah Walker, Anusha Rahman
- Evaluating Functions Evaluating functions is actually much easier (and less judgmental) than it sounds. When you evaluate a function, you plug in a numerical value for the varia…
By Hannah Bonville, Zora Gilbert, Alex Federspiel, Sarah Walker, Anusha Rahman, Caroline K
- Plug It In, Plug It In Just like with the old Glade commercials, the key to evaluating functions is to "plug it in, plug it in." (Video) 2004 Glade Plug-In Commercial by 513offi…
By Alex Federspiel, Sarah Walker, Anusha Rahman
Problems 23
- Evaluate the function f(x)=2x+1f(x)=2x+1f(x)=2x+1 at x=−7x=-7x=−7.
- Evaluate the function f(x)=x2−8f(x)=x^2-8f(x)=x2−8 at x=6x=6x=6.
- Evaluate the function f(x)=2(x+9)f(x)=2(x+9)f(x)=2(x+9) at x=3x=3x=3.
- Evaluate the function f(x)=2∣x−12∣+5f(x)=2|x-12|+5f(x)=2∣x−12∣+5 at x=8x=8x=8.
- Evaluate the function f(x)=x3+x2+xf(x)=x^3+x^2+xf(x)=x3+x2+x at x=−1x=-1x=−1.
- Evaluate the function f(x)=4xf(x)=\sqrt{4x}f(x)=4x at x=9x=9x=9.
- Evaluate the function f(x)=4x−4f(x)=4^x - 4f(x)=4x−4 at x=3x=3x=3.
- If f(x/2)=x+1f(x/2) = x+1f(x/2)=x+1 for all xxx, find the value of zzz that satisfies f(2z)=9f(2z)=9f(2z)=9.
- Let fff be a function satisfying f(ab)=f(a)/bf(ab) = f(a)/bf(ab)=f(a)/b for all positive real numbers aaa and bbb. If f(10)=3f(10) = 3f(10)=3, find f(15)f(15)f(15).
- Evaluate f(−1),f(0),f(2),f(4)f(-1), f(0), f(2), f(4)f(−1),f(0),f(2),f(4) (in that order), where f(x)={7x+3ifx<07x+6ifx≥0.f(x)=\left\{\begin{matrix} 7x+3&if&x<0\\ 7x+6&if&x\geq0.…
- Evaluate f(−1),f(0),f(2),f(4)f(-1), f(0), f(2), f(4)f(−1),f(0),f(2),f(4) in order, where f(x)={4x−9ifx<04x−18ifx≥0.f(x)=\left\{\begin{matrix} 4x-9&if&x<0\\ 4x-18&if&x\geq0. \end…
- Given the function f(x)=x2+x+1f(x)=x^2+x+1f(x)=x2+x+1, compute f(3)f(3)f(3).
- Find the value of f(x)=c+1f(x)=c+1f(x)=c+1 when x=2x=2x=2.
- Let fff be the function given by the rule f(x)=3x−8f(x)=3x-8f(x)=3x−8. What is the value of f(5)f(5)f(5)?
- What value does the function f(x)=5x−x2f(x)=5x-x^2f(x)=5x−x2 output when x=3x=3x=3?
- Evaluate f(3)f(3)f(3) for the function f(x)=xxf(x)=x^xf(x)=xx.
- ABf(x)=5x−13f(x)=2x+6\begin{array}{c|c} A&B\\ \hline f(x)=5x-13&f(x)=2x+6 \end{array}Af(x)=5x−13Bf(x)=2x+6 Which choice for function f(x)f(x)f(x) has a larger value of f(6)f(…
- ABf(x)=2x+4.8f(x)=3.4x−0.4\begin{array}{c|c} A&B\\ \hline f(x)=2x+4.8&f(x)=3.4x-0.4 \end{array}Af(x)=2x+4.8Bf(x)=3.4x−0.4 Which choice for function f(x)f(x)f(x), A or B, woul…
- ABf(x)=7−4xf(x)=x2−14\begin{array}{c|c} A&B\\ \hline f(x)=7-4x&f(x)=x^2-14 \end{array}Af(x)=7−4xBf(x)=x2−14 Which choice is larger for f(3)f(3)f(3), A or B?
- Which card would result in a higher score?
- How is the function f(x)=x2f(x) = x^2f(x)=x2 related to f(−x)=(−x)2f(-x) = (-x)^2f(−x)=(−x)2?
- If you have the function f(h)=2h−7+3kf(h)=2h-7+3kf(h)=2h−7+3k find the output when the input is 2.
- Evaluate the function f(x)=x(x+2)×5+1f(x)= x(x+2) \times 5 +1f(x)=x(x+2)×5+1 at x=3x=3x=3.